Wypróbowałem wiele rozwiązań, takich jak menedżery tuneli SSH, ale wszystkie były dla mnie niewygodne: zbyt wiele ekranów konfiguracji, czasami błędnych (kiedyś menedżer tunelu SSH wyczyścił wszystkie ustawienia, które miałem! Musiałem więc przywrócić ustawienia dla wszystkich 30 tuneli). Więc wszyscy stracili moje zaufanie. Właśnie dlatego wymyśliłem niestandardowy skrypt Powershell, łatwy do skonfigurowania, zmienny, mały, ale działa. Wysłano tutaj i poniżej:
Aby zacząć go używać, potrzebujesz takiej konfiguracji:
# LocalPort TargetHost TargetPort SshHost SshUsername SshKeyPath
18080 google.com 80 bastion.example.com User D:\secure\path\to\private_key.ppk
Zapisz go jako config.csv. Aby używać go, użyj skryptu PowerShell:
<#
.SYNOPSIS
Powershell script for keeping ssh tunnel up and running
.DESCRIPTION
This script uses configuration of tunnels located in config.csv. For more information visit http://tsherlock.tech/2019/03/13/simple-ssh-tunnel-auto-reconnect-using-putty-and-powershell/
.NOTES
Version: 1.0
Author: Anton Shkuratov
Creation Date: 2019-03-13
Purpose/Change: Initial script development
#>
$currentDir = $PSScriptRoot
if (-not $env:PATH.Contains($currentDir)) {
$env:PATH="$env:PATH;$currentDir"
}
# Check plink is accessible
try {
Start-Process plink.exe -WindowStyle Hidden
} catch {
Write-Host Error running plink.exe Please make sure its path is in PATH environment variable
EXIT 1
}
# Parse config
$config = [System.IO.File]::ReadAllLines("$currentDir\config.csv");
$bindings = New-Object System.Collections.ArrayList
$regex = New-Object System.Text.RegularExpressions.Regex("(\d)+\s([^ ]+)\s(\d+)\s([^ ]+)\s([^ ]+)\s([^ ]+)", [System.Text.RegularExpressions.RegexOptions]::IgnoreCase);
$keyPasswords = @{}
$procs = @{}
foreach($line in $config) {
$match = $regex.Match($line)
if ($match.Success) {
$sshKey = $match.Groups[6];
$bindings.Add(@{
LocalPort = $match.Groups[1];
TargetHost = $match.Groups[2];
TargetPort = $match.Groups.Groups[3];
SshHost = $match.Groups[4];
SshUser = $match.Groups[5];
SshKey = $match.Groups[6];
});
if (-not $keyPasswords.ContainsKey($sshKey)) {
$pass = Read-Host "Please enter password for key (if set): $sshKey" -AsSecureString
$keyPasswords.Add($sshKey, $pass);
}
}
}
# Starting Processes
function EnsureRunning($procs, $keyPasswords, $binding) {
if ($procs.ContainsKey($binding) -and $procs[$binding].HasExited) {
$proc = $procs[$binding]
$sshKey = $binding.sshKey
$out = $proc.StandardError.ReadToEnd()
if ($out.Contains("Wrong passphrase")) {
Write-Host "Wrong pass phrase for $sshKey, please re-enter"
$pass = Read-Host "Please enter password for key: $sshKey" -AsSecureString
$keyPasswords[$sshKey] = $pass;
} else {
$exitCode = $proc.ExitCode
$tHost = $binding.sshHost
Write-Host "Connection to $tHost is lost, exit code: $exitCode"
}
}
if (-not $procs.ContainsKey($binding) -or $procs[$binding].HasExited) {
$sshUser = $binding.SshUser
$sshHost = $binding.SshHost
$sshKey = $binding.SshKey
$lPort = $binding.LocalPort
$tPort = $binding.TargetPort
$tHost = $binding.TargetHost
$sshKeyPass = [Runtime.InteropServices.Marshal]::PtrToStringAuto([Runtime.InteropServices.Marshal]::SecureStringToBSTR($keyPasswords[$sshKey]))
$psi = New-Object System.Diagnostics.ProcessStartInfo;
$psi.FileName = "plink.exe";
$psi.UseShellExecute = $false;
$psi.CreateNoWindow = $true;
$psi.RedirectStandardInput = $true;
$psi.RedirectStandardError = $true;
$psi.Arguments = "-ssh $sshUser@$sshHost -i `"$sshKey`" -batch -pw $sshKeyPass -L $lPort`:$tHost`:$tPort"
$proc = [System.Diagnostics.Process]::Start($psi);
Start-Sleep 1
if (-not $proc.HasExited) {
Write-Host Connected to $sshUser@$sshHost
}
$procs[$binding] = $proc;
}
}
function EnsureAllRunning($procs, $keyPasswords, $bindings) {
while($true) {
foreach($binding in $bindings) {
EnsureRunning $procs $keyPasswords $binding
}
Start-Sleep 1
}
}
try {
# Waiting for exit command
Write-Host Working... Press Ctrl+C to stop execution...
EnsureAllRunning $procs $keyPasswords $bindings
} finally {
# Clean up
Write-Host Clean up
foreach($proc in $procs.Values) {
if ($proc -ne $null -and -not $proc.HasExited) {
$proc.Kill();
}
}
}
Po skonfigurowaniu uruchom go w następujący sposób:
powershell -File autossh.ps1
